People have survived jumping off the Golden Gate and Brooklyn Bridges as well. The odds are not good, but if you hit the water just right, you are not killed outright. Then there are the tides and cold to contend with. One woman survived a jump off the Golden Gate Bridge and was successful in killing herself when she jumped off it again a few weeks later.
IMO, it was disingenuous in the sense that the filmmaker interviewed family members of those who he had filmed jump, but did not tell them at the time that he was making a documentary and had received permission from the city of San Francisco to set up cameras 24/7 from Jan-Dec 2004, to capture all these on film.